How can use messnger when connect with wifi
 

Is anyway can I use my messnger on wifi and which messnger and where I go downloa apps

Do you have a Data Plan on TMo? Then yes, BBMessenger will work on the BlackBerry.

Have you looked at our FAQ site applications?
3rd Party Application List - BlackBerryFAQ.com

i would also advise you attempt to make your questions clearer.

No I m not talking about BB messnger
I am asking about other messnger like 3d party any messnger which I can use with wifi

Wirelessly posted (8800: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8310/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)

With a Data Plan, yes. Ant will work. But you must have a data plan on your service.